CN111818420B

CN111818420B - Loudspeaker and terminal

Info

Publication number: CN111818420B
Application number: CN202010525694.6A
Authority: CN
Inventors: 李诗哲; 刘阳
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2019-09-17
Filing date: 2019-09-17
Publication date: 2023-04-07
Anticipated expiration: 2039-09-17
Also published as: JP7412541B2; CN111818420A; CN112533113A; EP4024899A1; WO2021052243A1; JP2022548287A; US20220337942A1; EP4024899A4

Abstract

The embodiment of the application provides a speaker and terminal, including the casing of possess accommodating space and fix the sound production monomer in accommodating space, sound production monomer utensil is used for vibrating the vibrating diaphragm of sound production, the casing include first interior diapire and with first interior diapire fixed connection's inside wall, thereby the vibrating diaphragm meets with the inside wall is fixed to be kept apart into antetheca and back chamber with accommodating space, first interior diapire is located the antetheca, the inside wall link up and sets up out the sound hole, the antetheca forms the antetheca passageway with a sound hole intercommunication, the vibrating diaphragm is relative first interior diapire slope sets up, and the antetheca is greater than the antetheca with the bore that a sound hole is connected one end and is kept away from the antetheca goes out the bore of sound hole one end, is favorable to gentle air current, has reduced the peripheral vortex intensity of dog-ear, has reduced the production of miscellaneous sound, has improved the sound effect of speaker.

Description

Loudspeaker and terminal

Technical Field

The application relates to the technical field of acoustics, in particular to a loudspeaker and a terminal.

Background

At present, a loudspeaker is an important component in terminals such as mobile phones and tablet computers, and the sound effect is of great importance to the experience of users.

Fig. 1 shows a conventional speaker 10a, in which a sound generating unit 13a is fixedly accommodated in a housing 11a, the sound generating unit 13a has a diaphragm 131a for vibrating and generating sound, and the diaphragm 131a and an inner wall of the housing 11a form a front cavity 101a communicated with a sound outlet hole 111 a. The air pushed by the diaphragm 131a flows out from the sound outlet hole 111a through the front chamber 101a to emit sound. Turbulence may be generated if the flow velocity of the air flow in the front chamber 101a is too high, and turbulence may be generated if the air flow in the front chamber 101a encounters a sudden change in structure. Turbulent eddies can produce noise. Through simulation of the loudspeaker 10a by software, it is found that the most serious region of the turbulent flow and the eddy current generated by the loudspeaker 10a is the region on the side of the diaphragm 131a close to the sound outlet hole 111a, such as a region II shown in fig. 2 and a region III shown in fig. 3, where the region II is a region with more abnormal noise points of the airflow, and the region III is a region with an abnormally high airflow speed. The main reason is that, referring to fig. 4, in the Z direction, the size of the front cavity 101a near the sound emission hole 111a is much smaller than that of other areas due to the corrugated rim 1311a of the diaphragm 131a facing the front cavity 101a. Therefore, the speaker 10a is likely to generate noise, which results in poor sound effect and influences the user experience.

Disclosure of Invention

The technical problem to be solved by the embodiments of the present application is to provide a speaker and a terminal capable of reducing noise and improving sound effect.

In order to achieve the above purpose, the embodiment of the present application adopts the following technical solutions:

in a first aspect, an embodiment of the present application provides a speaker, including possess accommodating space's casing and fixing sound production monomer in the accommodating space, sound production monomer utensil is used for vibrating the vibrating diaphragm of sound production, the casing include first interior diapire and with first interior diapire fixed connection's inside wall, the vibrating diaphragm with thereby the inside wall is fixed meet will accommodating space keeps apart into antetheca and back chamber, first interior diapire be located the antetheca and with the vibrating diaphragm sets up relatively, the inside wall link up and sets up out the sound hole, the antetheca with it forms the antetheca passageway to go out the sound hole intercommunication, the vibrating diaphragm is relative first interior diapire slope sets up, and the antetheca with the bore that goes out the sound hole and connect one end is greater than the antetheca keeps away from the antetheca bore that goes out sound hole one end.

In this embodiment, the vibrating diaphragm is disposed in an inclined manner relative to the first inner bottom wall, and the aperture of the end of the front cavity connected to the sound outlet is larger than the aperture of the end of the front cavity far away from the sound outlet, in other words, the cross-sectional area of the cavity of the end of the front cavity connected to the sound outlet is larger than the cross-sectional area of the cavity of the end of the front cavity far away from the sound outlet, so that the cross-section of the front cavity is substantially horn-shaped, thereby smoothing the air flow and reducing the intensity of turbulence, and reducing the intensity of eddy caused by structural mutation of one side of the vibrating diaphragm adjacent to the sound outlet, for example, structural mutation of the front cavity caused by the height of the broken ring of the vibrating diaphragm. Because the strength of the vortex and the turbulent flow of the front cavity channel is reduced, the generation of noise is reduced, the sound effect of the loudspeaker is improved, and the use experience of a user is improved.

In one embodiment, the aperture of the front cavity channel increases from the end of the front cavity far away from the sound outlet hole to the end of the sound outlet hole far away from the front cavity, that is, the front cavity channel is also substantially trumpet-shaped, so that the space at the joint of the sound outlet hole and the front cavity is increased, air flow can be smoothed, the intensity of turbulence and noise are reduced, and the sound effect of the loudspeaker is further improved.

In an embodiment, the diaphragm has a folded ring protruding toward the front cavity, the hole wall of the sound outlet hole includes a first hole wall and a second hole wall which are oppositely disposed, the second hole wall is fixedly connected with the first inner bottom wall, the first inner bottom wall is located on one side of an extension line of the first hole wall, the folded ring is located on the other side of the extension line away from the first inner bottom wall, and the shortest distance between the folded ring and the extension line is not less than 0.

In an embodiment, the first hole wall and the second hole wall are inclined toward the side of the sound generating unit with respect to the second direction, so as to guide the flow direction of the airflow, that is, further guide the propagation of the sound.

In an embodiment, the inside wall is established first and is installed the platform, first install the platform with the fixed meeting of sound production monomer to increase the sound production monomer with the linkage area of inside wall is favorable to improving the casing to the free support stability of sound production.

In an embodiment, the first mounting table is disposed away from the first inner bottom wall, a distance between one end of the top surface adjacent to the sound outlet and the first inner bottom wall is greater than a distance between one end of the top surface away from the sound outlet and the first inner bottom wall, and the top surface is fixedly connected to one surface of the diaphragm facing the first inner bottom wall, so that the sounding unit is inclined with respect to the second direction. Carry out bed hedgehopping and support with the adjacent one end of sound outlet through first platform of installing, be favorable to improving the reliability of speaker.

In an embodiment, the first mounting table includes a first mounting portion and a first pad portion that are fixedly connected, the first mounting portion is fixedly connected to the diaphragm, the first pad portion extends toward the direction of the sound outlet hole, a top surface of the first pad portion away from the first inner bottom wall is away from a height of the first inner bottom wall, and an end of the first pad portion away from the sound outlet hole increases progressively toward an end of the first pad portion adjacent to the sound outlet hole, which is beneficial to improving connection stability between the casing and the diaphragm.

In an embodiment, the inside wall still be equipped with the first fender of installing the platform and being the ladder setting establishes the platform, first install a distance the height of diapire will be less than in first interior the fender establishes a distance the height of diapire in first, first install the platform and encircle roll over the ring setting, keep off and establish the platform and encircle sound production monomer sets up and fixed connection, because sound production monomer through first install the platform with keep off establish the platform with the inside wall is fixed to be met, further strengthens the stability of being connected between sound production monomer and the casing to further improve the reliability of speaker.

In an embodiment, the casing still includes a plurality of spacing archs, and is a plurality of spacing protruding interval is protruding to be located first install the platform and leave away from the one side of diapire in first, and with the fender is established a fixed meeting, and spacing arch offsets with the sound production monomer to can reduce the not hard up possibility of rocking of sound production monomer, be favorable to improving the tone quality of speaker.

In an embodiment, every two adjacent limiting bulges and the baffle are arranged to form a glue beating groove together for dispensing, the glue overflowing possibility is reduced, meanwhile, the sound generating monomer is connected with the shell in a sealing mode, and the water resistance and the air tightness of the loudspeaker are improved.

In an embodiment, the housing includes a first housing and a second housing, the first housing and the second housing together form the receiving space, the first housing has the first inner bottom wall and an inner side wall fixedly connected to the first inner bottom wall, and the second housing and the inner side wall are fixedly connected to a end of the inner side wall far away from the first inner bottom wall, which facilitates assembly of the speaker.

In an embodiment, the second shell includes diapire in the second and protruding locating the platform is installed to the second on the diapire in the second, the second install the platform with the sound production monomer deviates from one side of diapire in the first is fixed meets, be favorable to increasing the sound production monomer with the back cavity area that the casing constitutes to improve the sound effect of speaker.

In an embodiment, the platform is installed to second includes fixed installation department and the second liner portion that meets, the installation department with the sound production monomer is kept away from one side of vibrating diaphragm is fixed to be met, the second liner portion deviates from the top surface of diapire in the second with the sound production monomer deviates from one side laminating setting of vibrating diaphragm, the second liner portion deviates from the top surface distance of diapire in the second the height of diapire in the second, by the second liner portion deviates from the one end orientation of sound outlet hole the second liner portion with the one end that the sound outlet hole is adjacent is decremented for the sound production monomer is stably acceptd in first shell, reduces the not hard up possibility that the sound production monomer rocked.

In an embodiment, the first shell comprises a body and a supporting sheet, one end of the body is fixedly connected with the second shell, a through hole is formed in one end, away from the second shell, of the body, the supporting sheet is fixedly connected with the body and covers the through hole, the supporting sheet is arranged opposite to the vibrating diaphragm, the first inner bottom wall comprises an inner bottom wall, towards the vibrating diaphragm, of the supporting sheet, and the strength of the supporting sheet is larger than that of the body. Because the intensity of backing sheet is greater than the intensity of body, can strengthen the intensity of casing, and be favorable to practicing thrift the space of speaker to make things convenient for the sound production monomer to dispel the heat.

In an embodiment, the speaker further includes a flexible member sandwiched between a surface of the second housing facing the sound generating unit and the sound generating unit. The flexible piece is used for preventing the sound generating unit from loosening from the second shell, so that the reliability of the loudspeaker is improved.

In an embodiment, the inner sidewall of the first housing is a first inner sidewall, the second housing further includes a second inner sidewall formed by bending and extending an edge of the second inner sidewall, the second inner sidewall is fixedly connected to an end of the first inner sidewall far away from the first inner sidewall, the second inner sidewall and the first inner sidewall jointly form an inner sidewall of the housing, and the sound outlet is disposed on at least one of the second inner sidewall and the first inner sidewall.

In an embodiment, be equipped with the through-hole on the bottom wall in the second, the second shell still include by bottom wall orientation in the second the platform is installed to the second that the sound production monomer set up, the platform encircleed is installed to the second the through-hole setting of second shell, the second is installed the platform and is kept away from in the second the one side of diapire with the sound production monomer deviates from the one side of diapire passes through the colloid bonding in the first, realizes the sound production monomer with the sealed meeting of second shell. In addition, the through hole of diapire in the second is favorable to the heat dissipation of speaker.

In an embodiment, the vibrating diaphragm includes main part and ball top, the main part is equipped with the through-hole, the main part includes first connecting portion roll over ring and second connecting portion, roll over ring fixed connection in first connecting portion with between the second connecting portion, first connecting portion encircle roll over the ring setting, it encircles the second connecting portion set up, the second connecting portion encircle the through-hole setting, first connecting portion with first the platform of installing deviates from the top surface of first interior diapire is fixed to be met, the ball top with the second connecting portion of main part is fixed to be met and towards the one side setting of first interior diapire and cover the through-hole.

In a second aspect, an embodiment of the present application further provides a terminal, including the speaker and the processor as described above, where the processor is electrically connected to the speaker.

In one embodiment, the terminal is one of a smart phone, a smart watch, a tablet computer, a personal digital assistant, a sales terminal, a vehicle-mounted computer, a desktop computer, a notebook computer, a smart television, and a game console.

Drawings

Fig. 1 is a cross-sectional view of a loudspeaker of the prior art;

FIG. 2 is a schematic view of an airflow noise simulation of the speaker shown in FIG. 1;

FIG. 3 is a schematic view of a simulation of the airflow velocity field of the loudspeaker shown in FIG. 1;

FIG. 4 is a schematic diagram of a front chamber channel of the loudspeaker shown in FIG. 1;

fig. 5 is a block diagram of a terminal according to a first embodiment of the present application;

FIG. 6 is a diagram illustrating an application scenario of the terminal;

fig. 7 is a schematic perspective assembly view of a speaker according to a first embodiment of the present application;

FIG. 8 is a perspective cross-sectional view of the speaker shown in FIG. 7 taken along line I-I;

FIG. 9 is a schematic view of a front chamber channel;

fig. 10 is a schematic simulation diagram of an airflow velocity field of a loudspeaker according to a first embodiment of the present application;

FIG. 11 is a schematic diagram of a further simulation of the airflow velocity field of a loudspeaker provided in accordance with the first embodiment of the present application;

fig. 12 is an exploded perspective view of the speaker of fig. 7;

FIG. 13 is a top view of the first housing;

FIG. 14 is a perspective cross-sectional view of the speaker shown in FIG. 7 taken along line II-II;

FIG. 15 is a perspective view of the speaker assembly;

FIG. 16 is an exploded perspective view of the speaker of FIG. 7 from another perspective;

fig. 17 is a perspective sectional view of a sound generating unit of a speaker according to a first embodiment of the present application;

fig. 18 is a perspective exploded view of a sound generating unit of the speaker shown in fig. 17;

fig. 19 is a schematic perspective assembly view of a speaker according to a second embodiment of the present application;

fig. 20 is an exploded perspective view of the speaker shown in fig. 19;

fig. 21 is a perspective cross-sectional view of a sound generating unit of a speaker according to a second embodiment of the present application;

fig. 22 is a perspective exploded view of a sound generating unit of the speaker shown in fig. 19;

fig. 23 is a schematic perspective assembly view of a speaker according to a third embodiment of the present application;

fig. 24 is an exploded perspective view of the speaker shown in fig. 23;

fig. 25 is a cross-sectional view of the speaker shown in fig. 23;

fig. 26 is a sectional view of a speaker according to a fourth embodiment of the present application;

fig. 27 is a sectional view of a speaker according to a fifth embodiment of the present application.

Detailed Description

First embodiment

Referring to fig. 5, fig. 5 is a block diagram of a terminal according to a first embodiment of the present disclosure. The terminal 200 comprises a speaker 100, a processor 201, a communication bus 203, at least one communication interface 205, and a memory 206. The processor 201 is used to control the speaker 100 to play sound. The processor 201 is communicatively connected to the speaker 100, the at least one communication interface 205, and the memory 206 via a communication bus 203. The terminal 200 may be any of a number of different types of consumer electronic devices that may be easily held in a user's hand during normal use, and may also be a non-portable electronic device, and in particular, the terminal 200 may be a speaker-equipped electronic device such as a cellular phone, a media player, a smart phone, a smart watch, a tablet computer, a Personal Digital Assistant (PDA), a desktop, a television, and so forth.

The Processor 201 may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, discrete hardware component, etc. The general purpose processor may be a microprocessor or the processor may be any conventional processor or the like, and the processor 201 is the control center of the terminal 200, and various interfaces and lines are used to connect the various parts of the entire terminal 200. The communication bus 203 may include a path to transfer information between the aforementioned components.

The communication interface 205 is a device using any transceiver or the like, and is used for communicating with other devices or communication networks, such as ethernet, radio Access Network (RAN), wireless Local Area Networks (WLAN), and the like.

The memory 206 may be used to store computer programs and/or modules, and the processor 201 may implement various functions of the terminal 200 by executing or executing the computer programs and/or modules stored in the memory 206 and invoking data stored in the memory 206. The memory 206 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, application programs required for a plurality of functions (such as a sound playing function, an image playing function, and the like), and the like; the data storage area may store data (such as audio data, a phonebook, etc.) created according to the use of the terminal 200, and the like. In addition, the memory 206 may include high speed random access memory, and may also include non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), a plurality of magnetic disk storage devices, a Flash memory device, or other volatile solid state storage devices. The memory 206 may be self-contained and coupled to the processor 201 via the communication bus 203. The memory 206 may also be integrated with the processor 201.

In a specific implementation, the terminal 200 may include a plurality of processors 201, such as CPU0 and CPU1 in fig. 5, as an embodiment. Each of the processors 201 may be a single-core (single-CPU) processor or a multi-core (multi-CPU) processor. A processor herein may refer to one or more devices, circuits, and/or processing cores for processing data (e.g., computer program instructions).

The terminal 200 may also include a camera 207 for capturing images and a display 208 for displaying images. It is to be understood that fig. 5 is only an example of the terminal 200 and does not constitute a limitation to the terminal 200, and that the terminal 200 may include more or less components than those shown in fig. 5, or may combine some components, or different components, for example, the terminal 200 may further include an input and output device, a network access device, etc., which are not limited herein.

In one application scenario, referring to fig. 6, the terminal 200 is a consumer electronic device such as a smart phone, and the speaker 100 may be a hands-free phone unit in the terminal 200. In a scenario where a user makes a call with a remote user terminal through a wireless communication network by using the terminal 200, when the processor 201 detects a trigger event of the virtual key 209 of the display interface of the terminal 200, the processor 201 controls the speaker 100 to perform sound amplification so as to implement a hands-free call. Fig. 6 is an exemplary application of the terminal 200, and the present application does not limit this application, for example, in other embodiments, the speaker 100 plays the sound out when the terminal 200 plays multimedia.

Referring to fig. 7, fig. 7 is a schematic perspective assembly diagram of a speaker according to a first embodiment of the present application. The speaker 100 includes a housing 10 and a sound generating unit 20. The housing 10 includes a first housing 11 and a second housing 13 fixedly connected to the first housing 11. The first casing 11 and the second casing 13 together enclose a receiving space for receiving the sound generating unit 20.

Referring to fig. 8, fig. 8 is a perspective sectional view of the speaker shown in fig. 7 taken along the line I-I. First shell 11 includes first interior diapire 111 and with first interior diapire 111 fixed connection's first inside wall 113, sound production monomer 20 accept in first shell body 11 and meet with first inside wall 113 is fixed, sound production monomer 20 utensil is used for vibrating the vibrating diaphragm 21 of sound production, vibrating diaphragm 21 will accommodating space keeps apart into front chamber 101 and back chamber 102. The first inner bottom wall 111 is located in the front cavity 101 and is opposite to and spaced apart from the diaphragm 21 in a first direction (the Z direction shown in fig. 7). The diaphragm 21 has a corrugated rim 2113 protruding toward the front cavity 101. The first inner sidewall 113 is provided with a sound outlet 103, and the front cavity 101 and the sound outlet 103 are communicated with each other to form a front cavity channel 105. The diaphragm 21 of the sound generating unit 20 is disposed obliquely with respect to the first inner bottom wall 111. The caliber of the end of front cavity 101 connected with sound outlet hole 103 is larger than the caliber of the end of front cavity 101 far away from sound outlet hole 103.

Usually, the area defined by one side of the diaphragm with the folded ring and the inner wall of the shell is a front cavity area, and the area defined by one side of the diaphragm departing from the folded ring protruding direction and the inner wall of the shell is a back cavity area. Wherein the front volume region is generally used to help control the mid to high frequency sound quality of the speaker 100 and the rear volume region is generally used to help control the low frequency sound quality of the speaker. In this embodiment, the cross-sectional area of the front cavity 101 gradually increases and expands from the end away from the sound outlet hole 103 to the position of the sound outlet hole 103, so that the cross-section of the front cavity 101 is substantially trumpet-shaped.

Referring to fig. 9, fig. 9 is a schematic cross-sectional view of a front cavity channel, and a direction of an arrow in fig. 9 indicates a moving direction of the air flow, that is, a sound wave generated by vibration of the diaphragm 21 can be transmitted to the sound outlet hole 103 through the front cavity 101 to be output.

The hole walls of the sound outlet hole 103 include a first hole wall 1031 and a second hole wall 1033 which are disposed oppositely and substantially in parallel. The second hole wall 1033 is fixedly connected to the first inner bottom wall 111, and the first hole wall 1031 and the second hole wall 1033 are inclined in a direction away from the first inner bottom wall 111 relative to the second direction, so as to guide the airflow direction, i.e., the sound output. As shown in fig. 9, in a cross section of the speaker 100 along the first direction and the second direction, the first inner bottom wall 111 is located on one side of an extension line of the first hole wall 1031, the folded ring 2113 is located on the other side of the extension line away from the first inner bottom wall 111, and a shortest distance between the folded ring 2113 and the extension line is not less than 0, so as to reduce an influence of the folded ring 2113 on an airflow flowing in the front cavity 101. In the present embodiment, the diameter of front chamber 101 gradually increases from one end of front chamber 101, which is far from sound output hole 103, to the other end of front chamber 101, which is connected to sound output hole 103. The inclination angle of the sounding unit 20 relative to the first inner bottom wall 111 ranges from 0 to 180 degrees.

Diaphragm 21 sets up in the slope relatively first interior diapire 111, and the bore that the antechamber 101 is connected one end with a sound hole 103 is greater than the bore that the antechamber 101 kept away from a sound hole 103 one end, in other words, the intracavity cross sectional area that the antechamber 101 is connected one end with a sound hole 103 is greater than the intracavity cross sectional area that the antechamber 101 kept away from a sound hole 103 one end to the intensity that the air current has reduced the torrent, and can reduce because diaphragm 21 and the adjacent one side of a sound hole 103 because the intensity of the structure sudden change that the collaring 2113 height of diaphragm 21 caused leads to the vortex. The possibility of the generation of front cavity channel eddy currents and turbulence is reduced, thereby reducing the generation of noise, improving the sound effect of the loudspeaker 100, and improving the user experience. Referring to fig. 10 and 11, the airflow in the front chamber 105 is stable and smooth as a whole without sudden noise. Because the possibility of generating eddy currents and turbulence in the front cavity channel 105 is reduced, the generation of noise is reduced, the sound effect of the loudspeaker 100 is improved, and the use experience of a user is improved. The sounding single body 20 is obliquely arranged towards the second housing 13 relative to the first inner bottom wall 111, so that the low-frequency plumpness of the amplitude of the diaphragm 21 can be increased, and the sound dynamic range is greatly improved under the condition that the sound loudness is unchanged. Since the front chamber 101 has a substantially uniformly increasing trumpet-shaped cross section, the influence of sudden changes in the air flow from the sound source can be reduced. Compared with the prior art, the amplitude of the loudspeaker 100 is improved by more than 30%, and the flow velocity of the air flow at one side of the diaphragm 21 is reduced by 50%, so that noise and metal noise caused by the air flow are reduced.

Referring to fig. 12, fig. 12 is an exploded perspective view of the speaker shown in fig. 7. The first inner sidewall 113 further forms a first mounting platform 115 and a blocking platform 117 arranged in a ladder shape. The height of the first mounting platform 115 from the first inner bottom wall 111 is less than the height of the blocking platform 117 from the first inner bottom wall 111. The mounting stand 117 is disposed around the first mounting stand 115. The first mounting platform 115 is disposed around the folding ring 2113, and the blocking platform 117 is disposed around the sounding unit 20. The first mounting platform 115 has a top surface disposed away from the first inner bottom wall 111, a height of an end of the top surface of the first mounting platform 115 adjacent to the sound outlet hole 103 from the first inner bottom wall 111 is greater than a height of an end of the top surface of the first mounting platform 115 away from the sound outlet hole 103 from the first inner bottom wall 111, the top surface of the first mounting platform 115 is fixedly connected with a surface of the diaphragm 21 facing the first inner bottom wall 111, and the sound generating unit 20 is inclined relative to the second direction. The first mounting platform 115 is used to heighten and support the end of the sound generating unit 20 adjacent to the sound output hole 103, which is beneficial to improving the reliability of the speaker 100. The side surface of the blocking table 117 adjacent to the first mounting table 115 is bonded with the side surface of the sound generating unit 20 through glue, so that the connection stability between the first shell 11 and the sound generating unit 20 is further improved.

Referring to fig. 13 in combination, fig. 13 is a top view of the first housing, and the first mounting stage 115 includes two mounting portions 1151 and two first pad portions 1153. Each mounting portion 1151 is fixedly coupled between two first pad portions 1153, one mounting portion 1151 is disposed opposite to the sound outlet hole 103, and the sound outlet hole 103 is located between the other mounting portion 1151 and the first inner bottom wall 111. The height of the first gasket portion 1153 from the top surface of the first inner bottom wall 111 to the first inner bottom wall 111 increases from the end of the first gasket portion 1153 away from the sound emission hole 103 toward the end of the first gasket portion 1153 adjacent to the sound emission hole 103. In this embodiment, the top surface of the first pad portion 1153 facing away from the first inner bottom wall 111 is an inclined plane inclined toward the second housing 13 with respect to the second direction. It will be appreciated that the top surface of the first gasket portion 1153 facing away from the first inner bottom wall 111 may also be a sloped curved surface that slopes towards the side of the second outer shell 13 with respect to the second direction.

In the present embodiment, the first inner bottom wall 111 extends substantially along a plane defined by the second direction and a third direction (Y direction shown in fig. 12) perpendicular to the first direction. The front cavity channel 105 extends in the second direction, the mounting portion 1151 extends in the third direction, and the first cushion portion 1153 extends in the second direction. Referring to fig. 14, fig. 14 is a perspective cross-sectional view of the speaker shown in fig. 7 taken along line II-II, and the diaphragm 21 of the sound generating unit 20 is attached to the first pad portion 1153, which is beneficial to improving the connection stability between the housing 10 and the diaphragm 21.

The two mounting portions 1151 and the surfaces of the two first pad portions 1153 away from the first inner bottom wall 111 are bonded to the surface of the diaphragm 21 facing the first inner bottom wall 111, and the side surfaces of the blocking stage 117 adjacent to the first mounting stage 115 are bonded to the side surfaces of the sound generating units 20. The two mounting portions 1151 and the surfaces, far away from the first inner bottom wall 111, of the two first pad portions 1153 are bonded to the surface, facing the first inner bottom wall 111, of the sound generating unit 20 through a sealant, so that the sound generating unit 20 faces the bottom of the first inner bottom wall 131 and the sound generating unit 20 is hermetically connected with the first housing 13, and thus the water resistance and the air tightness of the loudspeaker 100 are improved; the side surface of the blocking table 117 adjacent to the first mounting table 115 is fixedly connected to the sound generating unit 20 through fixing glue, so as to enhance the connection stability between the first housing 11 and the sound generating unit 20.

In one embodiment, when the speaker 100 is assembled, four top surfaces of the sounding single body 20 facing the first inner bottom wall 111, corresponding to the two mounting portions 1151 and the two first pad portions 1153, which are away from the first inner bottom wall 111, are coated with a sealant, so as to prevent the diaphragm 21 of the sounding single body 20 from being separated from the first housing 11 during an air-tightness test to cause air leakage; the four sides of the sound generating unit 20 corresponding to the blocking platform 117 and the first mounting platform 115 are coated with glue, so that air leakage caused by gaps of sealant at the bottom of the sound generating unit 20 during an air tightness test is prevented, and the air tightness of the loudspeaker 100 is prevented from being influenced.

The first housing 11 further includes a plurality of limiting protrusions 119, the limiting protrusions 119 are protruded on the top surface of the first mounting platform 115 away from the first inner bottom wall 111 at intervals, and the limiting protrusions 119 are fixedly connected to the blocking platform 117. The limiting protrusion 119 offsets from the sounding unit 20, so that the possibility of looseness and shaking of the sounding unit 20 can be reduced, and the improvement of the sound quality of the speaker 100 is facilitated. In this embodiment, each mounting portion 1151 and each first pad portion 1153 are provided with two spacing protrusions 119 arranged at intervals. Referring to fig. 15, fig. 15 is a perspective assembly view of a speaker structure, and a glue dispensing groove 1157 is formed between adjacent limiting protrusions 119 for accommodating glue (not shown) for dispensing glue. It is understood that the number of the restricting projections 119 may be set as desired, and the restricting projections 119 may be omitted.

It is understood that the first housing 11 and the sound generating unit 20 may be in non-sealing connection; the blocking platform 117 and the first installation platform 115 may be omitted, and the sound generating unit 20 is directly obliquely installed on the first housing 11, and the sound generating unit 20 is fixedly connected to the first inner sidewall 113 of the first housing 11; alternatively, the first mounting platform 115 is partially disposed on one end of the first inner sidewall 113 adjacent to the sound outlet 103, and is capable of raising one end of the sounding single 20 adjacent to the sound outlet 103.

Referring to fig. 16, fig. 16 is an exploded perspective view of the speaker shown in fig. 7 from another perspective. The second housing 13 includes a second inner bottom wall 131 and a second inner sidewall 133 formed by bending and extending an edge of the second inner bottom wall 131. The second inner sidewall 133 is fixedly connected to an end of the first inner sidewall 113 away from the first inner bottom wall 111. The first inner sidewall 131 and the second inner sidewall 133 form an inner sidewall of the housing 10. The second inner bottom wall 131 is provided with a through hole 1311. The second housing 13 further includes a second mounting stand 135 provided from the second inner bottom wall 131 toward the sounding unit 20. The second mounting stand 135 is disposed around the through hole 1311. The one side of the second mounting table 135 far from the second inner bottom wall 131 and the one side of the sound generating unit 20 far from the first inner bottom wall 111 are bonded through glue, so that the sound generating unit 20 is hermetically connected with the second housing 13.

The second mounting table 135 includes two mounting portions 1351 and two second pad portions 1353. Each mounting portion 1351 is fixedly coupled between two second pad portions 1353. The mounting portion 1351 extends in the third direction, and the second pad portion 1353 extends in the second direction. The height of the second pad portion 1353 away from the top surface of the second inner bottom wall 131 from the second inner bottom wall 131 is gradually decreased from the end of the second pad portion 1353 away from the sound outlet hole 103 to the end of the second pad portion 1353 adjacent to the sound outlet hole 103, so that the sound-generating unit 20 can be stably accommodated in the housing 10, and the possibility of loosening and shaking of the sound-generating unit 20 is reduced.

It is understood that the second housing 13 may be omitted from the housing 10, or the first housing 11 and the second housing 13 may be integrally manufactured; the sound outlet hole 103 may be opened on the second inner sidewall 133; the first inner sidewall 131 and the second inner sidewall 133 may be spliced to form an inner sidewall of the housing 10, and the sound outlet 103 may be opened in the second inner sidewall 133, or partially opened in the first inner sidewall 111 and partially opened in the second inner sidewall 131. Casing 10 includes first interior diapire and with first interior diapire fixed connection's inside wall, a speaker and terminal, including utensil accommodating space's casing and fixed accept in accommodating space's sound production monomer, sound production monomer utensil is used for vibrating the vibrating diaphragm of sound production, the casing includes first interior diapire and with first interior diapire fixed connection's inside wall, thereby the vibrating diaphragm meets with the inside wall is fixed to keep apart accommodating space into ante-chamber and back chamber, first interior diapire is located the ante-chamber, first interior diapire is relative and the interval setting along the first direction with the vibrating diaphragm, the vibrating diaphragm utensil is towards the protruding book ring of establishing of ante-chamber, the inside wall link up and sets up out the sound hole, the ante-chamber forms the ante-chamber passageway with a sound hole intercommunication, sound production monomer sets up with the relative second direction slope of at least one in the first interior diapire, and the bore of the adjacent one end of sound hole is greater than the bore of the other end of ante-chamber.

Referring to fig. 17 to 18, fig. 17 is a perspective cross-sectional view of a sounding unit of a speaker according to a first embodiment of the present disclosure, and fig. 18 is a perspective exploded view of the sounding unit shown in fig. 17. In this embodiment, the diaphragm 21 includes a main body 211 and a dome 213. The main body 211 is provided with a through hole 2111. The main body 211 includes a first connection portion 2112, a fold 2113, and a second connection portion 2115. The hinge 2113 is fixedly connected between the first connection portion 2112 and the second connection portion 2115, the first connection portion 2112 is disposed around the hinge 2113, the hinge 2113 is disposed around the second connection portion 2115, and the second connection portion 2115 is disposed around the through hole 2111. The first connection portion 2112 is fixedly attached to a top surface of the first mounting platform 115 facing away from the first inner bottom wall 2111. The dome 213 is fixedly connected to the second connection portion 2115 of the main body 211, faces one surface of the first inner bottom wall 111, and covers the through hole 2111.

The sounding single body 20 further comprises a basin frame 22, a first magnet 25, a coil 26, a second magnet 27, a washer 28 and a porcelain bowl 29. The main body 210 of the diaphragm 21 is fixed to the frame 22 by a first connection portion 2112. The side surface of the basin frame 22 is fixedly connected with a blocking platform 117. The first magnet 25, the coil 26, the second magnet 27, and the washer 28 are housed in the frame 22. The first magnet 25 is housed in the coil 26. The coil 26 is housed in a washer 28. The number of the second magnets 27 is four, and four second magnets 27 are arranged around the coil 26. The washer 28 is located between the fold 2113 and the second magnet 27. A porcelain bowl 29 is fixed at one end of the frame 22 far away from the diaphragm 21 and is used for blocking the components in the frame 22 from separating from the frame 22. The basin stand 22 is fixedly connected to the side of the blocking platform 117 adjacent to the first mounting platform 115. The second magnet 27 is located between the washer 28 and the china bowl 29. In the present embodiment, the number of coils 26 is two. The first magnet 25, the coil 26 and the second magnet 27 form a magnetic circuit system of the sounding unit 20, and are used for driving the diaphragm 21 to vibrate and sound. It is understood that the number of the first and

second magnets

25 and 27 is not limited; the structure of the sounding unit 20 is not limited, and the first magnet 25 or the second magnet 27 may be omitted, for example, the washer 28 may be omitted.

Second embodiment

Referring to fig. 19-20, fig. 19 is a schematic perspective assembly view of a speaker according to a second embodiment of the present application, and fig. 20 is a schematic perspective exploded view of the speaker shown in fig. 19. The speaker 300 according to the second embodiment has substantially the same structure as the speaker 100 according to the first embodiment, and the speaker 300 includes a housing 30 and a sound generating unit 40. The casing 30 includes a first casing 31 and a second casing 33, the sound generating unit 40 is fixedly accommodated in the first casing 31, and the second casing 33 is covered on the end of the first casing 31 where the opening is located and is fixedly connected with the first casing 31. The sounding unit 40 is disposed obliquely toward the second housing 33 with respect to the second direction. The difference is that the first housing 31 includes a body 311 and a supporting piece 313, a through hole 3111 is disposed on the bottom wall of the body 311, and the supporting piece 313 is fixedly connected to the body 311 and covers the through hole 3111. The support piece 313 is disposed opposite to the diaphragm of the sounding single body 40. The support piece 313 and one surface of the body 311 facing the sounding unit 20 together form a first inner bottom wall of the first housing 31. The support piece 313 has a strength greater than that of the body 311, and the support piece 313 has a thickness less than that of the sidewall of the body 311.

In the present embodiment, the first housing 31 and the second housing 33 are made of plastic, and the support plate 313 is a steel plate. The thickness of the sidewall of the plastic case is not less than 0.4mm to achieve the required strength and/or rigidity, and the thickness of the support plate 313 made of steel plate ranges from 0.15 mm to 0.2mm, i.e. the support plate 313 can increase the strength of the housing 30. Since the support piece 313 is thin, it is advantageous to save the space of the speaker 300 and facilitate the heat dissipation of the sound generating unit 40. It is understood that the materials of the first housing 31, the second housing 33 and the supporting plate 313 are not limited.

The speaker 300 further includes a flexible member 50, and the flexible member 50 is sandwiched between a surface of the second casing 33 facing the sound generating unit 40 and the sound generating unit 40. The flexible member 50 serves to prevent the sound-emitting unit 40 from being loosened from the second housing 33, thereby improving the reliability of the speaker 300. In this embodiment, the flexible member 50 is a pressed foam. In other embodiments, the flexible member 50 may be a soft support structure such as a gel layer, a sponge, or the like.

Referring to fig. 21 and 22, fig. 21 is a perspective cross-sectional view of a sound generating unit of a speaker according to a second embodiment of the present application, and fig. 22 is a perspective exploded schematic view of the sound generating unit of the speaker shown in fig. 21.

In this embodiment, the sounding unit 40 further includes a frame 42, a flexible printed circuit 44, a first magnet 45, a coil 46, a second magnet 47, a washer 48, and a porcelain bowl 49. The diaphragm 41 is fixed to the frame 42. The diaphragm 41 is disposed toward the support sheet 313. The flexible circuit board 44, the first magnet 45, the coil 46, the second magnet 47, and the washer 48 are housed in the tub stand 42. The first magnet 45 is housed in the coil 46. The coil 46 is housed in the flexible wiring board 44. The flexible circuit board 44 is adapted to electrically connect with the coil 46 to supply power to the coil 46. The number of the second magnets 47 is four, and four second magnets 47 are arranged around the coil 46. A washer 48 is located between the dome 43 and the first magnet 45. A porcelain bowl 49 is fixed at one end of the frame 42 away from the diaphragm 41 and is used for blocking the components in the frame 42 from separating from the frame 42. The second magnet 47 is located between the flexible wiring board 44 and the porcelain bowl 49. In the present embodiment, the number of coils 46 is two. The first magnet 45, the coil 46 and the second magnet 47 form a magnetic circuit system of the sound generating unit 40, and are used for driving the diaphragm 41 to vibrate and generate sound.

Third embodiment

Referring to fig. 23 to 24, fig. 23 is a schematic perspective assembly view of a speaker according to a third embodiment of the present application, and fig. 24 is a schematic perspective exploded view of the speaker shown in fig. 23. The speaker 400 according to the third embodiment has substantially the same structure as the speaker 100 according to the first embodiment. The speaker 400 includes a housing 50 and a sound generating unit 60 fixedly housed in the housing 50. The casing 50 includes a first casing 51 and a second casing 53, the sound generating unit 60 is fixedly accommodated in the first casing 51, and the second casing 53 covers an opening end of the first casing 51 and is fixedly connected to the first casing 51.

The difference is that the second housing 53 is substantially flat, and the second housing 53 is fixedly connected to the sound generating unit 60; referring to fig. 25, in a direction perpendicular to the first inner bottom wall 111, the aperture of the sound outlet 403 is gradually increased from the end of the sound outlet 403 adjacent to the front cavity 401 to the other end of the sound outlet 403, so that the aperture of the front cavity channel 405 is gradually increased from the end of the front cavity 401 far from the sound outlet 403 to the end of the sound outlet 403 far from the front cavity 401, that is, the front cavity channel 405 is substantially horn-shaped, the space at the connection between the sound outlet 403 and the front cavity 101 is increased, the airflow can be smoothed, the intensity of turbulence and the generation of noise are reduced, and the sound effect of the speaker 400 is further improved; the first hole wall 4031 of the sound outlet hole 403 and the first inner bottom wall 511 of the first housing 51 are located on the same plane, so that a sudden change structure between the front cavity 401 and the sound outlet hole 403 is reduced, the generation of eddy and noise in the front cavity channel 405 is reduced, and the sound effect of the loudspeaker 400 is improved.

Fourth embodiment

Referring to fig. 26, fig. 26 is a cross-sectional view of a speaker according to a fourth embodiment of the present application. The speaker 500 according to the fourth embodiment has substantially the same structure as the speaker 300 according to the third embodiment. The speaker 500 includes a housing 71 and a sound generating unit 73 fixedly housed in the housing 71. The housing 71 includes a first housing 711 and a second housing 713, the sound generating unit 73 is fixedly accommodated in the first housing 711, and the second housing 713 is covered on an end of the first housing 711 where the opening is located and is fixedly connected to the first housing 711. The front chamber 501 extends in a second direction (X direction in fig. 26) along which the sound emitting cells 73 are disposed, except that the first inner bottom wall 7111 is obliquely disposed with respect to the second direction toward a direction away from the second housing 713, and the sound emitting cells 73 are still obliquely disposed with respect to the first inner bottom wall 7111.

Fifth embodiment

Referring to fig. 27, fig. 27 is a cross-sectional view of a speaker according to a fifth embodiment of the present application. The speaker 500 according to the fifth embodiment has substantially the same structure as the speaker 300 according to the third embodiment. The speaker 500 includes a housing 75 and a sound generating unit 77 fixedly housed in the housing 75. The casing 75 includes a first casing 751 and a second casing 753, the sound generating unit 77 is fixedly housed in the first casing 751, and the second casing 753 is provided to cover an end of the first casing 751 where an opening is located and is fixedly connected to the first casing 751. The front chamber 501 extends in a second direction (e.g., the X direction in fig. 27). Different in that, sound generating unit 77 sets up towards the slope of second shell 753 place side relative to the second direction, and the relative second direction orientation of first inner bottom wall 7511 sets up towards the slope of the direction that deviates from second shell 753, and sound generating unit 77 still sets up the slope relative to first inner bottom wall 7511.

In summary, a speaker includes a housing having an accommodating space and a sound-generating unit fixed in the accommodating space, where the sound-generating unit has a vibrating diaphragm for vibrating and generating sound, the housing includes a first inner bottom wall and an inner side wall fixedly connected to the first inner bottom wall, the vibrating diaphragm is fixedly connected to the inner side wall so as to isolate the accommodating space into a front cavity and a rear cavity, the first inner bottom wall is located in the front cavity, the inner side wall penetrates through the front cavity to form a sound hole, the front cavity is communicated with the sound hole to form a front cavity channel, the vibrating diaphragm is inclined relative to the first inner bottom wall, and in a direction perpendicular to the first inner bottom wall, a diameter of a connection end of the front cavity and the sound hole is greater than a diameter of an end of the front cavity, which is far away from the sound hole.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A loudspeaker is characterized by comprising a shell with an accommodating space and a sounding monomer fixed in the accommodating space, wherein the sounding monomer is provided with a vibrating diaphragm for vibrating and sounding, the shell comprises a first inner bottom wall and an inner side wall fixedly connected with the first inner bottom wall, the vibrating diaphragm is fixedly connected with the inner side wall so as to separate the accommodating space into a front cavity and a rear cavity, the first inner bottom wall is positioned in the front cavity, a sounding hole is formed in the inner side wall in a penetrating manner, the front cavity is communicated with the sounding hole to form a front cavity channel, the vibrating diaphragm is obliquely arranged relative to the first inner bottom wall, and the caliber of one end, connected with the sounding hole, of the front cavity is larger than the caliber of one end, far away from the sounding hole, of the front cavity;

the caliber of the front cavity channel increases progressively from one end of the front cavity far away from the sound outlet hole to one end of the sound outlet hole far away from the front cavity;

the diaphragm is provided with a folded ring which is convexly arranged towards the front cavity, the hole wall of the sound outlet hole comprises a first hole wall and a second hole wall which are oppositely arranged, the second hole wall is fixedly connected with the first inner bottom wall, the first inner bottom wall is positioned on one side of an extension line of the first hole wall, and the folded ring is positioned on the other side of the extension line, which is far away from the first inner bottom wall;

the shell comprises a first shell and a second shell, the first shell and the second shell form the accommodating space together, the first shell is provided with the first inner bottom wall and an inner side wall fixedly connected with the first inner bottom wall, and the second shell and one end, far away from the first inner bottom wall, of the inner side wall are fixedly connected;

the inner side wall is provided with a first mounting table which is fixedly connected with the sounding monomer;

the first mounting table comprises a first mounting part and a first liner part which are fixedly connected, the first mounting part is fixedly connected with the vibrating diaphragm, the first liner part extends towards the direction of the sound outlet hole, the top surface of the first liner part, which is far away from the first inner bottom wall, is away from the height of the first inner bottom wall, and the height of the top surface of the first liner part, which is far away from the sound outlet hole, is gradually increased towards the end, adjacent to the sound outlet hole, of the first liner part;

the inner side wall is also provided with a blocking platform which is arranged in a stepped manner with the first mounting platform, the height from the first mounting platform to the first inner bottom wall is smaller than the height from the blocking platform to the first inner bottom wall, and the blocking platform surrounds the sounding monomer and is fixedly connected with the sounding monomer;

the shell further comprises a plurality of limiting bulges, the limiting bulges are convexly arranged on one surface of the first mounting platform, which is away from the first inner bottom wall, at intervals and are fixedly connected with the blocking platform, and the limiting bulges are abutted to the sounding single bodies;

the second shell comprises a second inner bottom wall and a second installing platform arranged on the second inner bottom wall in a protruding mode, and the second installing platform is fixedly connected with one side, deviating from the first inner bottom wall, of the sounding unit.

2. The loudspeaker of claim 1, wherein the shortest distance between the edge and the extension line is not less than 0.

3. The loudspeaker of claim 1, wherein each two adjacent limiting protrusions and the baffle table jointly enclose a glue applying groove.

4. The loudspeaker of claim 1, wherein the second mounting platform comprises a mounting portion and a second pad portion which are fixedly connected, the mounting portion is fixedly connected with one side of the sound generating unit far away from the diaphragm, the top surface of the second pad portion far away from the second inner bottom wall is attached to one side of the sound generating unit far away from the diaphragm, the top surface of the second pad portion far away from the second inner bottom wall is far away from the height of the second inner bottom wall, and one end of the second pad portion far away from the sound outlet is gradually decreased towards one end of the second pad portion adjacent to the sound outlet.

5. The loudspeaker of claim 1, wherein the first housing comprises a body and a supporting sheet, one end of the body is fixedly connected to the second housing, a through hole is formed in an end of the body away from the second housing, the supporting sheet is fixedly connected to the body and covers the through hole, the supporting sheet is arranged opposite to the diaphragm, the first inner bottom wall comprises an inner bottom wall arranged towards the diaphragm, and the strength of the supporting sheet is greater than that of the body.

6. The loudspeaker according to claim 1, further comprising a flexible member interposed between a surface of the second enclosure facing the sound-generating unit and the sound-generating unit.

7. The speaker of claim 1, wherein the first housing and the second housing are made of plastic.

8. The loudspeaker of claim 5 wherein the support piece is a steel sheet.

9. A loudspeaker according to claim 6, wherein the flexible member is a gel layer or a sponge.

10. A terminal, characterized in that the terminal comprises a loudspeaker according to any one of claims 1-9 and a processor, the processor being electrically connected to the loudspeaker.